the bank manager herself is being questioned by the fbi. the bomb squad using a robot to detonate the device. it is still unclear whether it was genuine or fake. there are echoes of the fatal robbery in pennsylvania in 2003 when a pizza delivery guy walked into a bank with a pipe bomb strapped to his neck and walked out with $8,700. the bomb later exploded killing him. unclear whether he was in on the plot. the bank manager says she feared for her life and just did exactly as she was told. >> she took the money out of the bank and threw it out the door to the bank robbers. >> two bank robbers who never set foot inside the building escaped with an undisclosed amount of cash. nick watt, abc news, los angeles. >>> well, aftershocks continue in costa rica after a powerful earthquake shook the country. the 7.6 quake caused one death and minor damage. yesterday, the quake was 25 miles underground. deeper quakes are usually widely felt but cause less damage. >>> a week after making landfall in louisiana, isaac may spring back to life in the gulf.